Circuit symbols for mosfet, Electrical Engineering

Circuit Symbols for MOSFET

A range of symbols are employed for the MOSFET. The basic design is usually a line for the channel along with the source and drain leaving it at right angles and then bending back at right angles into similar direction as the channel. Occasionally three line segments are employed for enhancement mode and a solid line for depletion mode. One more line is drawn parallel to the channel for the gate.

The bulk connection, if displayed, is shown connected to the back of the channel with an arrow pointing out PMOS or NMOS. Arrows all the time point from P to N, thus an NMOS (N-channel in P-well or P-substrate) has the arrow pointing in (from the bulk to the channel). If the bulk is associated to the source (as is usually the case with discrete devices) it is occasionally angled to meet up with the source leaving the transistor. If the bulk is not shown (as is frequently the case in IC design as they are usually common bulk) an inversion symbol is sometimes employed to point out PMOS, alternatively an arrow on the source may be employed in similar way as for bipolar transistors (out for nMOS, in for pMOS).

Evaluation of enhancement-mode and depletion-mode MOSFET symbols, with JFET symbols (drawn with source and drain ordered like that higher voltages appear higher on the page than as compared to the lower voltages):

995_Circuit symbols for mosfet.png

For the symbols where the bulk, or body, terminal is displayed, it is here shown internally connected to the source. This is a common configuration, but via no means the only important configuration. Generally, the MOSFET is a four-terminal device, and in integrated circuits many of the MOSFETs share a body connection not essentially related to the source terminals of all the transistors.

Posted Date: 1/11/2013 1:05:04 AM | Location : United States







Related Discussions:- Circuit symbols for mosfet, Assignment Help, Ask Question on Circuit symbols for mosfet, Get Answer, Expert's Help, Circuit symbols for mosfet Discussions

Write discussion on Circuit symbols for mosfet
Your posts are moderated
Related Questions
With the development of cheap and reliable operational amplifiers the need to design amplifier circuits has disappeared. However it is still necessary to utilise these devices in a

draw a graph of V=IR for R=300ohms over the domain -3mA

DAA Decimal Adjust Accumulator Instruction This  instruction adjusts the contents  of the accumulator  into BDC (Binary Coded Decimal )  form  after a BCD  addition. It should

which ckt. Or components using for irregular ac sine wave change into pure sine wave.......

SHLD Store HL pair Direct Instruction This  instruction is used to store the contents of HL  register  pair to  memory  address specified  in the  instruction and the  next ad

How wood a transfer function of a time-multiplexer with switching in 10 kHz between 2 channels look like?

Working of Hartley oscillator : When the collector supply voltage Vcc is switched on, the capictor gets charged. The capacitor discharges through the inductor, setting up oscil

Altavox is a manufacturer and distributor of a lot of electronic instruments and devices, including digital/analog multimeters, function generators, oscilloscopes, frequency counte

You are expected to do the experimentation on digital electronics and realize the result...

Q. What do you mean by Byte? Without question, the most vital data structure used by the 80x86 microprocessor is the byte this is true since the ASCII code is a 7-bit non-weigh